Answer:
x = 9
Step-by-step explanation:
The easiest way you can do this is to set both expressions equal to each other and solve for x.
2x + 3 = 3x - 6 (subtract 2x from both sides to get x on one side)
3 = x - 6 (add 6 to both sides to get x by itself)
9 = x aka x = 9
You can double-check your answer by plugging in 9 for x in both expressions.
2(9) + 3 = 21
3(9) - 6 = 21
